Automatic arm folding machine

Abstract

The utility model discloses an automatic arm folding machine which comprises a workpiece limiting structure and a workpiece bending driving structure. The workpiece bending driving structure comprises a rotating shaft and a driving assembly. The driving assembly is characterized in that at least one pressure sensor is fixed to a fixing plate; the movable plate is fixed at the signal receiving end of the sensor; the support assembly comprises supports which are symmetrically arranged, and rotating grooves are formed in the opposite sides of the supports. Connecting shafts matched with the rotating grooves are arranged on the two sides of the roller. The buffer assembly comprises a buffer rod and a second guide rod fixed to the buffer rod, a second guide channel is formed in the movable plate, the second guide rod penetrates through the second guide channel and then is fixedly provided with a limiting ring, and the portion, between the buffer rod and the movable plate, of the second guide rod is sleeved with a buffer spring. According to the utility model, automatic assembly is adopted, the fatigue of the folding arm can be tested, the test action is circulated, the test can be carried out until the arm fails, or the test times can be set.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the automatic control equipment field, concretely relates to a kind of automatic arm folding machine. BACKGROUND

[0002] Tent is supported on the ground shelter from rain, sunlight and for temporary residence Shed. More canvas is made, along with the things of support, can be removed at any time shift. Tent is carried in component mode, is assembled only after reaching site. Therefore, there are various folding tents, and the folding arm is formed by two hinged folding arms, and the canvas tent surface, the existing life, fatigue degree and the like are tested for such folding arm, mostly artificial detection, repeatedly bending the folding arm during detection, the number of times of bending the folding arm is measured, but the bending detection force of artificial detection each time is different, it is difficult to reach the same standard, so as to cause that the accuracy of measurement is not high.

[0003] For the existing durability or bending force degree of folding arm does not have automatic testing mechanism, therefore, it is very important to obtain an automatic arm folding machine to overcome the above defects. INVENTION CONTENTS

[0004] To solve at least one of the above technical problems, the utility model provides an automatic arm folding machine, including at least one workpiece limiting structure and at least one workpiece bending driving structure;

[0005] The workpiece bending driving structure includes rotating shaft, driving assembly fixed on rotating shaft, and the driving assembly includes:

[0006] Fixed plate, at least one pressure sensor is fixed on the fixed plate;

[0007] Movable plate, the signal receiving end of sensor is fixed;

[0008] Support assembly, including symmetrically arranged support, rotating groove is arranged on the opposite side of support;

[0009] Roller, connecting shaft is arranged on the two sides of roller and matched with rotating groove;

[0010] Buffering assembly, including buffer rod, second guide rod fixed on buffer rod, second guide channel is arranged on the movable plate, the second guide rod is fixed with limit ring after passing through the second guide channel, and buffering spring is arranged on the second guide rod between the buffer rod and the movable plate.

[0011] By the technical scheme, when the folding arm is put into use, one of the arm bodies is fixed on the workpiece limiting structure, and the other arm body is at least partially placed on the roller and / or the buffer assembly of the workpiece bending driving structure, and when the rotating shaft rotates, the other arm body of the folding arm can be driven to bend towards the direction of the one arm body, and the folding performance of the folding arm can be tested.

[0012] By the technical scheme, the setting of the roller can help to realize the bending without damaging the arm body by the surface rolling contact between the roller and the one arm body; and the buffer assembly can provide a pressure to the arm body in the folding state, so that the folding of the two arm bodies is more sufficient, and the reliability of the test is increased.

[0013] The driving assembly and the rotating shaft are connected through the connecting rod assembly, the connecting rod assembly comprises a plurality of parallel connecting rods with at least one bending, a support rod is fixed between the plurality of parallel connecting rods, a fixed plate is installed on the connecting rods, and the connecting rods are fixed on the rotating shaft.

[0014] By the technical scheme, the connecting rod has a partial bending, so that the stability and strength of the connecting rod are increased.

[0015] At least one first guide channel is formed in the fixed plate, a first guide rod is fixed at the bottom of the movable plate, and the first guide rod is at least partially located in the first guide channel.

[0016] A slot is longitudinally formed in the support and cooperates with the rotating groove, the support on both sides of the slot forms an elastic arm structure, a transverse limiting hole is formed in the elastic arm structure, and the fastener passes through the two transverse limiting holes to deform the rotating groove to limit the connecting shaft.

[0017] The cross-sectional radius of the roller increases from the middle part to the two ends; and the buffer rod is provided with a protective sleeve.

[0018] By the technical scheme, the cross-sectional radius of the roller increases from the middle part to the two ends to adapt to the width of the folding arm of various widths, and because the cross-sectional radius of the roller increases from the middle part to the two ends, the contact area between the roller and the folding arm can be reduced.

[0019] The workpiece limiting structure comprises two guide rails, a first moving plate fixed between first sliders of the two guide rails, a second moving plate fixed between second sliders of the two guide rails, a limiting assembly fixed on the first moving plate and the second moving plate, the limiting assembly comprising a first limiting plate fixed on the first moving plate or the second moving plate, and a driving telescopic mechanism, and the output end of the driving telescopic mechanism is fixedly connected with a second limiting plate.

[0020] The driving telescopic mechanism can be a pneumatic cylinder.

[0021] The first limiting plate and the second limiting plate are fixed with buffer washers, the first limiting plate is provided with a long hole, a fastener is connected with the first moving plate and the second moving plate through the long hole, at least one first washer is fixed on the first moving plate and the second moving plate, and a second washer is fixed on the workbench through a support, and the action directions of the first washer and the second washer are perpendicular.

[0022] The driving mechanism for controlling the rotation of the rotating shaft comprises oppositely arranged support frames fixed on the workbench, the rotating shaft is rotatably connected to the support frames at two ends, a driving motor is fixed in the workbench, the support frames are further rotatably connected with first rotating wheels, the first rotating wheels are fixed with worms at centers, one end of the rotating shaft is engaged with the worm, and the driving motor is connected with the first rotating wheels through a belt.

[0023] The workbench is further provided with a second sensor and a third sensor, and the connecting rod at least partially forms a second driving end for triggering the second sensor.

[0024] When the folding arm is put into use, if the pivoted connection between the two arm bodies of the folding arm is provided with a torsion spring, i.e., the two arm bodies can be in an open state in a natural state, then one arm body is fixed by the driving telescopic mechanism, and the other end is unfolded in a natural state, when the rotating shaft rotates, the drum and / or the buffer rod abut against the arm body not fixed by the limiting mechanism to make it bend towards the arm body fixed by the limiting mechanism, the buffer rod is retracted, the first receiving head receives the signal of the first driving head, the bending count can be realized, and the pressure sensor receives the pressure to be borne during bending.

[0025] If the two arm bodies of the folding arm are pivotedly connected but are not provided with a torsion spring or the like, then the arm body not fixed by the driving telescopic mechanism can be installed on the connecting rod through a bandage.

[0026] Compared with the prior art, the utility model has the following beneficial effects: The utility model adopts automatic assembly, can test fatigue of folding arm, and test action cycle, can test all the time until arm failure, or set test number. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 For the utility model three -dimensional Figure One ;

[0028] Figure 2 For the utility real three -dimensional Figure Two ;

[0029] Figure 3 For the utility model cross section schematic view;

[0030] Figure 4 It is the utility model buffer assembly three -dimensional view;

[0031] Figure 5 It is the utility model buffer assembly cross section schematic view;

[0032] Figure 6 It is the utility model folding test cross section schematic view;

[0033] Reference signs:

[0034] 1 workpiece limiting structure;101 guide rail;102 first moving plate;103 second moving plate;104 first limiting plate;105 drive telescopic mechanism;106 second limiting plate;107 buffer gasket;108 long hole;

[0035] 201 rotation shaft;202 drive assembly;203 fixed plate;204 first guide channel;205 first guide rod;206 pressure sensor;207 movable plate;208 support assembly;209 support;210 roller;211 buffer assembly;212 buffer rod;213 second guide rod;214 second guide channel;215 limiting ring;216 buffer spring;217 connecting rod;218 support rod;219 slot;220 rotation groove;221 transverse limiting hole;222 protective sleeve;223 first receiving head;224 first drive head;

[0036] 301 first pad;302 second pad;303 second sensor;304 third sensor;

[0037] 401 one of the arm body;402 another arm body;

[0038] 501 support frame;502 drive motor;503 first runner;504 worm. DETAILED DESCRIPTION

[0039] In order to make the person skilled in the art better understand the utility model, so that the scope of protection required by the utility model is more clearly limited, the utility model is described in detail below with regard to some specific embodiments of the utility model. It should be noted that the following is only some specific embodiments of the utility model concept and is only a part of the embodiments of the utility model, and the specific and direct description of the related structure is only for the convenience of understanding the utility model, and each specific feature does not of course, directly limit the implementation scope of the utility model.

[0040] Referring to the drawings, the utility model adopts the following technical scheme, an automatic arm folding machine, including at least one workpiece limiting structure 1 and at least one workpiece bending drive structure;

[0041] The workpiece bending drive structure includes a rotating shaft 201, a drive assembly 202 fixed on the rotating shaft 201, the drive assembly 202 includes:

[0042] The fixed plate 203 is fixed with at least one pressure sensor 206 on the fixed plate 203;

[0043] The movable plate 207 is fixed on the signal receiving end of the sensor;

[0044] The support assembly 208 includes symmetrically arranged supports 209, and rotating grooves 220 are formed on the opposite sides of the supports 209;

[0045] The roller 210 is provided with a connecting shaft matched with the rotating groove 220 on both sides of the roller 210;

[0046] The buffer assembly 211 includes a buffer rod 212 and a second guide rod 213 fixed on the buffer rod 212, a second guide channel 214 is formed on the movable plate 207, the second guide rod 213 is fixed with a limiting ring 215 after penetrating through the second guide channel 214, and the buffer spring 216 is arranged on the outer sleeve of the second guide rod 213 between the buffer rod 212 and the movable plate 207.

[0047] Through the above technical scheme, when the utility model is put into use, one of the arm bodies 401 of the folding arm is limited and fixed on the workpiece limiting structure 1, and the other arm body 402 is at least partially placed on the roller 210 and / or the buffer assembly 211 of the workpiece bending drive structure, and when the rotating shaft 201 rotates, the other arm body 402 of the folding arm can be driven to bend towards the direction of one arm body, and the folding performance of the folding arm can be tested.

[0048] Through the technical scheme, the roller 210 can help to reduce damage to the arm body when the arm body is bent, and the buffer assembly 211 can provide a pressure to the arm body in the folded state, so that the arm body and the roller 210 are folded more fully, and the reliability of the test is increased.

[0049] The driving assembly 202 is connected with the rotating shaft 201 through a connecting rod assembly, the connecting rod assembly includes a plurality of parallel connecting rods 217 with at least one bend, a plurality of parallel connecting rods 217 are fixed with a support rod 218, a fixed plate 203 is mounted on the connecting rods 217, and the connecting rods 217 are fixed on the rotating shaft 201.

[0050] Through the technical scheme, the connecting rod 217 has a partial bend, so that the stability and strength of the connecting rod 217 are increased.

[0051] At least one first guide channel 204 is formed in the fixed plate 203, a first guide rod 205 is fixed at the bottom of the movable plate, and the first guide rod 205 is at least partially located in the first guide channel 204.

[0052] The support 209 is longitudinally provided with a slot 219 matched with the rotating groove 220, the support 209 on both sides of the slot 219 forms an elastic arm structure, the elastic arm structure is provided with a transverse limiting hole 221, and a fastener passes through two transverse limiting holes 221 to limit the connecting shaft by deforming the rotating groove 220.

[0053] The cross-sectional radius of the roller 210 increases from the middle part to the two ends; and the buffer rod 212 is provided with a protective sleeve 222. The buffer rod 212 or the protective sleeve 222 and the movable plate 207 are respectively provided with a first receiving head 223 and a first driving head 224 of a first sensor matched with each other. The protective sleeve 222 can be made of acrylic or other materials.

[0054] Through the technical scheme, the cross-sectional radius of the roller 210 increases from the middle part to the two ends, which is suitable for the width of the folded arm of various widths, and because the cross-sectional radius of the roller 210 increases from the middle part to the two ends, the contact area between the roller 210 and the folded arm is reduced.

[0055] The workpiece limiting structure 1 comprises two guide rails 101, a first moving plate 102 fixed between the first sliders of the two guide rails 101, a second moving plate 103 fixed between the second sliders of the two guide rails 101, a limiting assembly fixed on the first moving plate 102 and the second moving plate 103, wherein the limiting assembly comprises a first limiting plate 104 fixed on the first moving plate 102 or the second moving plate 103, and a driving telescopic mechanism 105, and the output end of the driving telescopic mechanism 105 is fixedly connected with a second limiting plate 106, and the driving telescopic mechanism 105 controls the distance between the first limiting plate 104 and the second limiting plate 106.

[0056] The driving telescopic mechanism 105 can be a pneumatic cylinder.

[0057] The first limiting plate 104 and the second limiting plate 106 are fixed with buffer pads 107, the first limiting plate 104 is provided with a long hole 108, fasteners are connected with the first moving plate 102 and the second moving plate 103 through the long hole 108, at least one first pad 301 is fixed on the first moving plate 102 and the second moving plate 103, a second pad 302 is fixed on the workbench through a support, and the action directions of the first pad 301 and the second pad 302 are perpendicular.

[0058] The driving mechanism for controlling the rotation of the rotating shaft 201 comprises oppositely arranged support frames 501 fixed on the workbench, the rotating shaft 201 is rotatably connected to the support frames 501 at two ends, a driving motor 502 is fixed in the workbench, the support frame 501 is further rotatably connected with a first rotating wheel 503, the center of the first rotating wheel 503 is fixed with a worm 504, one end of the rotating shaft 201 is engaged with the worm 504, and the driving motor 502 is connected with the first rotating wheel 503 through a belt.

[0059] The workbench is further provided with a second sensor 303 and a third sensor 304, and the connecting rod 217 at least partially forms a second driving end for triggering the second sensor 303.

[0060] When the utility model is put into use, if the pivoted connection between the two arm bodies of the folding arm is provided with a torsional spring, that is, the two arm bodies can be in an open state in a natural state, then one arm body is fixed by the driving telescopic mechanism 105, and the other end is unfolded in a natural state, when the rotating shaft 201 rotates, the drum 210 and / or the buffer rod 212 abut against the arm body not fixed to realize bending counting, and the pressure sensor 206 can receive the pressure to be borne when bending.

[0061] If the two arm bodies of the folding arm are pivotally connected but are not equipped with torsional spring or the like device, the arm body not limited by the driven telescopic mechanism 105 can be mounted to the connecting rod 217 through a strap.

[0062] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts automatic assembly, can test fatigue of folding arm, and test action cycle, can test until arm failure or set test number.

[0063] Thus, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the utility model, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.

Claims

1. An automatic arm folding machine characterized by: The workpiece limiting structure (1) and the workpiece bending driving structure are arranged on the workpiece bending device. The workpiece bending driving structure comprises a rotating shaft (201), a driving assembly (202) fixed on the rotating shaft (201), and the driving assembly (202) comprises: a fixed plate (203) on which at least one pressure sensor (206) is fixed; a movable plate (207) fixed on a signal receiving end of the sensor; a support assembly (208) comprising symmetrically arranged supports (209), and a rotating groove (220) is arranged on the opposite side of each support (209); a roller (210) having a connecting shaft arranged on the two sides of the roller (210) and matched with the rotating groove (220); a buffer assembly (211) comprising a buffer rod (212) and a second guide rod (213) fixed on the buffer rod (212), a second guide channel (214) is arranged on the movable plate (207), the second guide rod (213) passes through the second guide channel (214) and is fixed with a limiting ring (215), and a buffer spring (216) is arranged outside the second guide rod (213) between the buffer rod (212) and the movable plate (207).

2. The automatic arm folding machine according to claim 1, characterized in that: The driving assembly (202) and the rotating shaft (201) are connected through a connecting rod assembly, the connecting rod assembly comprises a plurality of parallel arranged connecting rods (217) having at least one bend, a support rod (218) is fixed between the plurality of parallel arranged connecting rods (217), the fixed plate (203) is mounted on the connecting rods (217), and the connecting rods (217) are fixed on the rotating shaft (201).

3. The automatic arm folding machine according to claim 1, characterized in that: A first guide channel (204) is arranged on the fixed plate (203), a first guide rod (205) is fixed on the bottom of the movable plate (207), and the first guide rod (205) is at least partially located in the first guide channel (204).

4. The automatic arm folding machine according to claim 1, characterized in that: A slot (219) matched with the rotating groove (220) is longitudinally arranged on the support (209), the supports (209) located on the two sides of the slot (219) form an elastic arm structure, a transverse limiting hole (221) is arranged on the elastic arm structure, and a fastener passes through the two transverse limiting holes (221) to deform the rotating groove (220) to limit the connecting shaft.

5. The automatic arm folding machine according to claim 1, characterized in that: The cross-sectional radius of the roller (210) increases from the middle part to the two ends; and a protective sleeve (222) is arranged outside the buffer rod (212).

6. The automatic arm folding machine according to claim 5, characterized in that: A first receiving head (223) and a first driving head (224) matched with each other are arranged outside the buffer rod (212) or the protective sleeve (222) and on the movable plate (207), respectively.

7. The automatic arm folding machine according to claim 1, characterized in that: The workpiece limiting structure (1) comprises two guide rails (101), a first moving plate (102) is fixed between the first sliders of the two guide rails (101), a second moving plate (103) is fixed between the second sliders of the two guide rails (101), a limiting assembly is fixed on the first moving plate (102) and the second moving plate (103), the limiting assembly comprises a first limiting plate (104) fixed on the first moving plate (102) or the second moving plate (103), a driving telescopic mechanism (105), the output end of the driving telescopic mechanism (105) is fixedly connected with a second limiting plate (106), and the driving telescopic mechanism (105) controls the distance between the first limiting plate (104) and the second limiting plate (106).

8. The automatic arm folding machine according to claim 7, characterized in that: The first limiting plate (104) and the second limiting plate (106) are fixed with buffer washers (107); A long hole (108) is formed in the first limiting plate (104), and a fastener is adjustably connected with the first moving plate (102) and the second moving plate (103) after penetrating through the long hole (108); At least one first pad (301) is fixed on the first moving plate (102) and the second moving plate (103), a second pad (302) is fixed on the workbench through a support, and the first pad (301) and the second pad (302) are perpendicular to each other.

9. The automatic arm folding machine according to claim 1, characterized in that: The driving mechanism for controlling the rotation of the rotating shaft (201) comprises oppositely arranged support frames (501) fixed on the workbench, the rotating shaft (201) is rotatably connected to the support frames (501) at two ends, a driving motor (502) is fixed in the workbench, the support frame (501) is further rotatably connected with a first rotating wheel (503), the first rotating wheel (503) is fixed with a worm (504) at the center, one end of the rotating shaft (201) is engaged with the worm (504), and the driving motor (502) is connected with the first rotating wheel (503) through a belt.

10. The automatic arm folding machine according to claim 2, characterized in that: The workbench is further provided with a second sensor (303) and a third sensor (304), and the connecting rod (217) at least partially forms a second driving end for triggering the second sensor (303).

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